Why is vitrified tile pipe not acceptable for storm sewers?

Vitrified tile pipe is not suitable for storm sewers primarily due to its brittleness and weakness, particularly in larger diameters. This type of pipe, although initially strong, can become prone to cracking or breaking under the various loads and pressures encountered in stormwater applications. Larger diameter pipes are subject to greater forces, including soil loads and hydraulic pressures, which can exacerbate these issues.

Additionally, the design and structure of storm sewers often require materials that can handle dynamic loading, such as those from vehicular traffic or ground movement. The rigidity and susceptibility to failure of vitrified tile pipe make it an unreliable choice under these conditions. While factors like cost, flexibility, and chemical corrosion do play roles in material selection for plumbing systems, the primary concern with vitrified tile pipe is its structural integrity in the context of storm sewer applications.